Pres. Obama's School Speech
Personally, I think its a great idea for the President of the United States to address children during their first week back to school. Much in the same way that the President can wield the bully pulpit in driving legislation, so too can he use it to encourage children to stay in school, work hard, and be respectful young citizens. I hope the President does it again the next three years (and I hope President Romney does it the following 8 ;)
Of course, the President could use it as an opportunity to politic; to try to extol the virtues of health care reform, etc... And I would consider this incredibly inappropriate. However, there's no indication that he plans to do so, and I think it would be a politically stupid move. Furthermore, I consider it wrong to convict him of exploiting children before he has done a thing.